Alert archive / Wisconsin / Chippewa County

Weather alerts in Chippewa County, Wisconsin, 2008

97 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Chippewa County and its neighbors

Each county as a circle sized by its count in 2008. Tap one for its archive.

Alerts
97
Warnings
22
Watches
18
Advisories
34
Busiest month
July25 alerts
Busiest day
July 16, 20087 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Chippewa County, 2008

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings17759%683%31 min
Flash flood warnings00

Each office's whole area, 2008

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Twin Cities, MN: tornado warnings461078%3165%11 min
NWS Twin Cities, MN: severe thunderstorm warnings29311461%43083%26 min
NWS Twin Cities, MN: flash flood warnings3167%450%68 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 5, 3:10 PM CSTDense Fog AdvisoryMPX23 hr
Jan 6, 10:34 PM CSTDense Fog AdvisoryMPX10 hr
Jan 7, 3:16 PM CSTDense Fog AdvisoryMPX18 hr
Jan 16, 3:56 PM CSTSnow AdvisoryMPX26 hr
Jan 17, 3:25 PM CSTWind Chill AdvisoryMPX51 hr
Jan 23, 2:45 PM CSTWind Chill AdvisoryMPX18 hr
Jan 28, 2:59 PM CSTWinter Weather AdvisoryMPX27 hr
Jan 29, 3:37 AM CSTWind Chill AdvisoryMPX16 hr
Jan 29, 10:34 AM CSTMesoscale DiscussionSPC4 hr
Jan 29, 2:51 PM CSTWind Chill WarningMPX21 hr
Feb 3, 3:39 PM CSTSnow AdvisoryMPX28 hr
Feb 3, 3:39 PM CSTWinter Weather AdvisoryMPX21 hr
Feb 8, 2:27 PM CSTWind Chill WatchMPX13 hr
Feb 8, 2:27 PM CSTWinter Weather AdvisoryMPX34 hr
Feb 9, 3:50 AM CSTWind Chill WarningMPX32 hr
Feb 10, 10:52 AM CSTWind Chill AdvisoryMPX7 hr
Feb 13, 4:32 AM CSTSnow AdvisoryMPX25 hr
Feb 16, 3:21 PM CSTSnow and Blowing Snow AdvisoryMPX26 hr
Feb 19, 3:59 AM CSTWind Chill AdvisoryMPX32 hr
Mar 2, 4:35 PM CSTWinter Weather AdvisoryMPX7 hr
Mar 17, 11:58 AM CDTWinter Weather AdvisoryMPX9 hr
Mar 30, 3:37 AM CDTWinter Storm WatchMPX11 hr
Mar 30, 3:04 PM CDTHeavy Snow WarningMPX39 hr
Mar 31, 9:48 AM CDTMesoscale DiscussionSPC6 hr
Apr 25, 2:10 PM CDTMesoscale DiscussionSPC65 min
May 17, 1:28 PM CDTMesoscale DiscussionSPC92 min
May 17, 4:46 PM CDTSevere Thunderstorm WarningMPX29 min
May 17, 5:08 PM CDTSevere Thunderstorm WarningMPX52 min
May 18, 3:55 PM CDTFrost AdvisoryMPX15 hr
May 25, 2:04 PM CDTTornado Watch PDSSPC6 hr
May 25, 6:01 PM CDTMesoscale DiscussionSPC59 min
May 25, 6:28 PM CDTSevere Thunderstorm WarningMPX62 min
May 25, 6:51 PM CDTSevere Thunderstorm WarningMPX54 min
May 25, 7:12 PM CDTTornado WatchSPC4 hr
May 25, 7:38 PM CDTSevere Thunderstorm WarningMPX51 min
Jun 5, 1:38 AM CDTMesoscale DiscussionSPC3 hr
Jun 5, 11:36 AM CDTFlash Flood WatchMPX17 hr
Jun 5, 9:14 PM CDTTornado WatchSPC8 hr
Jun 6, 2:41 AM CDTWind AdvisoryMPX15 hr
Jun 6, 3:29 AM CDTMesoscale DiscussionSPC61 min
Jun 10, 3:25 PM CDTFlash Flood WatchMPX42 hr
Jun 11, 4:26 PM CDTAreal Flood AdvisoryMPX4 hr
Jun 14, 6:54 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 14, 9:48 PM CDTMesoscale DiscussionSPC87 min
Jun 14, 11:36 PM CDTMesoscale DiscussionSPC54 min
Jun 20, 2:26 PM CDTMesoscale DiscussionSPC94 min
Jun 27, 12:32 PM CDTMesoscale DiscussionSPC2 hr
Jul 6, 5:38 PM CDTMesoscale DiscussionSPC2 hr
Jul 6, 9:09 PM CDTSevere Thunderstorm WarningMPX51 min
Jul 10, 9:36 AM CDTMesoscale DiscussionSPC84 min
Jul 10, 12:06 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 10, 7:23 PM CDTSevere Thunderstorm WarningMPX23 min
Jul 10, 11:41 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 11, 2:15 AM CDTMesoscale DiscussionSPC60 min
Jul 11, 4:18 AM CDTSevere Thunderstorm WarningMPX57 min
Jul 11, 6:13 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 16, 9:29 AM CDTMesoscale DiscussionSPC2 hr
Jul 16, 9:57 AM CDTSevere Thunderstorm WatchSPC8 hr
Jul 16, 10:32 AM CDTSevere Thunderstorm WarningMPX58 min
Jul 16, 11:01 AM CDTSevere Thunderstorm WarningMPX59 min
Jul 16, 11:18 AM CDTSevere Thunderstorm WarningMPX27 min
Jul 16, 12:53 PM CDTSevere Thunderstorm WarningMPX41 min
Jul 16, 1:30 PM CDTMesoscale DiscussionSPC2 hr
Jul 17, 10:57 AM CDTSevere Thunderstorm WatchSPC7 hr
Jul 17, 12:19 PM CDTFlash Flood WatchMPX8 hr
Jul 19, 2:28 PM CDTTornado WatchSPC8 hr
Jul 19, 5:06 PM CDTSevere Thunderstorm WarningMPX54 min
Jul 25, 1:19 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 25, 3:31 PM CDTSevere Thunderstorm WarningMPX59 min
Jul 25, 3:38 PM CDTMesoscale DiscussionSPC97 min
Jul 25, 4:22 PM CDTSevere Thunderstorm WarningMPX38 min
Jul 29, 10:07 AM CDTMesoscale DiscussionSPC83 min
Aug 3, 4:03 PM CDTSevere Thunderstorm WarningMPX27 min
Aug 3, 10:21 PM CDTTornado WatchSPC5 hr
Aug 4, 1:46 AM CDTMesoscale DiscussionSPC89 min
Aug 6, 1:45 PM CDTMesoscale DiscussionSPC90 min
Aug 16, 6:16 PM CDTMesoscale DiscussionSPC2 hr
Sep 2, 1:42 PM CDTMesoscale DiscussionSPC93 min
Sep 27, 1:15 AM CDTSevere Thunderstorm WarningMPX27 min
Oct 25, 3:32 PM CDTWind AdvisoryMPX28 hr
Nov 2, 9:45 PM CSTDense Fog AdvisoryMPX11 hr
Dec 2, 2:44 PM CSTWinter Weather AdvisoryMPX15 hr
Dec 8, 5:01 AM CSTWinter Weather AdvisoryMPX28 hr
Dec 13, 4:36 PM CSTWinter Weather AdvisoryMPX37 hr
Dec 14, 5:44 AM CSTWind Chill AdvisoryMPX42 hr
Dec 18, 3:24 AM CSTWinter Weather AdvisoryMPX30 hr
Dec 18, 3:43 PM CSTWinter Storm WatchMPX36 hr
Dec 20, 3:55 AM CSTWinter Storm WarningMPX38 hr
Dec 20, 8:48 PM CSTWinter Weather AdvisoryMPX21 hr
Dec 21, 3:15 PM CSTWind Chill AdvisoryMPX18 hr
Dec 22, 3:42 AM CSTWinter Weather AdvisoryMPX32 hr
Dec 25, 3:36 PM CSTWinter Weather AdvisoryMPX20 hr
Dec 26, 12:32 PM CSTDense Fog AdvisoryMPX14 hr
Dec 27, 3:46 AM CSTWinter Weather AdvisoryMPX19 hr
Dec 29, 7:51 AM CSTWinter Weather AdvisoryMPX34 hr
Dec 30, 2:17 AM CSTWinter Storm WarningMPX16 hr
Dec 30, 6:11 AM CSTMesoscale DiscussionSPC3 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20072009

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.